Ventilator.



D. C. MCCANDLESS.

VENTILATOR.

APPLIQATION FILED JULY `ru. 1910,

1,001,42 1 Patented Aug. 22, 1911 3 www1/fo@ I). GTMZQCZMJZZCwa UNITED STATES. PATENT oEEicE.

DAVID CHARLES MCCANDLESS, F BOISE' IDAHO.

VENTILATOR.

Specification of Letters Patent.

Patented Aug. .'32, 1.911.

Application vfiled July 18, 1910. Serial No. 572,630.

To all whom Lt may concern:

Be 1t known that l, Darin Cir-ninas Me- CANnLEss, a citizen of thev United States,

` the floor.

The object of my invention is to provide means whereby an abundant ventilation can be secured by opening suitable shutters, the operating means being hidden by an ornamental canopy.

With this object in view, my invention consists in the construction and combinations ot' parts as hereinafter' described and claimed.

ln the accompanying4 drawing--lfigure l. is a cross-section of my improved ventilator, partly in elevation. Fig. 2 is a similar View of the shutters and means for operating them and the support, and Fig. 3 is a bottom plan view, the lamp fixture and canopy being iemoved.

1 represents an ordinary licor and@ the supporting lloor beams therefor. To the beams f2 is secured my Ventilating device, which consists of a rectangular plate 3, pro- Avided with holes 4 at the corners, through which pass nails or screws into the beams 2, and with smaller holes 5 for the reception of the plastering 6, it being understood that the Ventilating .device is -fastened to the floor beams before the plastcring is put :in place.

The central partof the plate 3 has a downward extension 7, curving inwardly as shown at 8, and terminating in a central aperture 9,-surrounded by a curved rim 10, the aperture 9 serving for the upward passage of air for Ventilating purposes.

Across the top of the support and cen-l trally located With relation to the aperture 9, is a broad brace 11, provided with a central hole 12 for the passage of a gas pipe, indicated in dotted `lines by 13, and with holes for the passage of an electric cable, the Wires 0f which are indica/.ted at l.

Hinged on each side ol. the brace ll, are the shutterslt. arranged to be` thrown up,` as shown in 'lull lines in Fig. l` or to rest on the lop ot' the plate Il, liindicating theJ hingessupporting these sl'uitters oli the brace 1l.

Each ot' the shutters is provided with a curved wire or guide 1S, through which plas-sosa curved arm or wire lll. lhis armv is extended and passes through a bearing E on the bottom of the bracell, and is there joined to another arm or wire 19a, hav ing an extended portion 21. The part 19 engages with a guide 1S on the other shutter. To thc ends` ot the arm 19, are attached cords or wires Q2 and 23 for operating the shutters, and it is obvious that'a pull on` the cord 22 will close the shutters and that a pull on the Wire 23 will open 'them, `the wires or arms 19 and 1.9 being bent and engaging the guides 18 and 1S.

To the lower edge 10 of the part 8, are secured a series of eyes 24, which receive hooks such as 25 projectingl from the upper side of an ornamental canopy 2G, which is made concaved, as shown in Fig. 1, and which is used for the purpose of hiding the ventilating` construction proper, which would otherwise seem unsightly. To the lower part of the canopy 26, is attached an mnanlental pipe 27,to which is attached the lamp tixturc :28. The canopy Q6 is, of course, lperforated for the passage therethrough of the wires or cords 22 and Q3.

The operation will be evident fromA the foregoing description. If the cord 23 is pulled, the shutters will be lifted into the position shown in full lines in Fig. 1. If the cord or wire 22 is pulled, they will be closed. The air, which is heated around the gas or electric lamp, passes, as shown by the arrows, over the canopy through the opening 9, when the shutters are lifted, and finally is conducted oii' by any suitable means, as by a pipe, the end of which is shown at 29.

ln a Ventilating device for lamps, the combination of a frame having a vertical opening therethrough, a bar extending across the top of said opening, shutters hingedly connected to the bar and adapted to close said opening, guides on. the shutters, bent arms pivotally connected to said har and passing through the guides, one of the arms extending beyond the pivotal polnt and' cords attached to opposite ends thereof, aiu Xn testimony whereof, I ax my signa.- ornamental canopy removaby secured to ture, in presence of two witnesses. the lower part of seid frame, said canopy being provided with holes through which DAW? GHARLES MCGANDLESS the cords pass, and a lamp xture secured to Wtnesses: the center of said canopy, substantially as M. C. DUNBAR,

described. JOHN J. BLAKE. 

